Type-writing machine.



CP. NIOSHER. TYPE WRITING MACHINE. APPLlcATIoN FILED Nov. 21. |915.

Patented June 11, 1918 C. P. MOSHER.

TYPE WRITING MACHINE.

APPLICATION FILED Nov. 21. |915.

1,259,201 Patented June 11. 1918.

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CHARLES EHILO MOSHER,'OF GROTON, NEW YORK, ASSIGNOIR '1"0` CORONA TYPEWRITER COMPANY, INC., A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE specification of Letters Patent'. Patented June 11, 1918..

Application led November 27, 1915. Serial No. 63,736.

To all whom t may concern:

Be it known that I, CHARLES PHILO MosHER, a citizen of the United States, and a resident of Groton, county of Tompkins, and State of New York, have invented certain new and useful Improvements in Type- Writing Machines, of which vthe following is a full, clear, land exact description.

This invention relates more particularly to the case shift of fold'able visible frontstrike typewriting machines such as disclosed in my application Serial No. 56,242, filed October 16th, 1915, which has matured into Patent 1,222,443, dated April 10, 1917.

One of the principal objects of the invention is to provide simple and efficient means whereby the type basket may be given movement relatively to the platen to adaptv the type blocks or heads to have a plurality of characters thereon, and so to construct and arrange the shift mechanism that it may be folded toward the platen when not in use,

in order that the machine may be made compact for transportation and other purposes.

Another object of the invention is to mount a shift mechanism upon a foldable support which also serves as a means for mounting Ithe key action and type-bars, and which shift mechanism, key action and type bars may be moved with the support to a position to materially reduce the cubical dimensions of the machine when not in use and make the machine when in a compact condition of a substantially uniform shape c011- venient for carrying purposes.

A further object of the invention is-to provide simple and etlicient means whereby considerable leverage is obtained at the initial depression of the shift lever in order that the type basket maybe-readily elevated.

Other objects of the invention are to provide simple and eliicient mechanism which may be located at opposite sides of the machine to adapt the case shift to be operated from either side thereof; to provide means whereby anti-friction devices may be employed to assist in the easy operation of the lshift mechanism; and to provide simpleand efficient mean .for lockin' the shift lever.

rfb D A still fu er object of the invention is to provide a case shift mechanism which isV simple in construction and which may be' readily made and assembled.

With these and other objects in View, the

invention will be hereinafter more particu-A tion of the case shift mechanism.

Fig. 3 is a view similar to Fig. 2, except that the shift lever has been depressed to elevate the type-bar basket.

Fig. 4 is a fragmentary plan view of one side of the platen shift and key action support. D

Fig. 5 is a fragmentary transverse section taken on the line V-V of Fig. 4.

Fig. 6 is a transverse section taken on the line VI-VI of Fig. 4; and

Fig. 7 shows a modified form vof shif mechanism.

While the invention is shown as applied to a typewriter in which an inclosing case is employed, and in which the type-bar basket is shifted, it will be understood that the inventionmay be used in writing machines wherein the usual or any preferred form of frame or parts may be employed, or wherein the platen or platen carriage is shifted instead of the type basket.y

The inclosing case 10 may be of any suitable construction and forms the main supporting means for the different. parts of the vtypewriter and is so constructed that when the case is closed all of the operating parts of the t-ypewriterare incloscd within said case. 'As shown', the case 10 has a main member 11, the latter having a hase 12, sides 13 and a rear wall 14, to the upper end of which rear wall is hinged at 15 a top or cover 16. At 17 is a foldable case member which is hinged at 18 to the base or wall 12 of the main member 11, and is adapted to be moved upwardly and rearward toward the platen and against the forward edge of the sides 13 so that when the top or cover 1G is moved forward on its hinge 15 a substantially uniform and box-like package is provided. The foldable case member is provided with lugs 19 located on opposite :sides of said member 17 and pivoted to each lug is a stay 20. The stay 20 is provided with a slot 21 and is normally forced dull in one direction by a spring 22, said slot 21 being curved at its upper end, as at 23, toadapt the shank of a button or stud 24 to pass therethrough, so that When the stays are in the position shown in Fig. 1 the foldable ease member 17 Will be held in its unfolded position but When the stays are pressed against the. tension of the springs 22 such action will place the'shanks of the studs 24 in alinement with the main part of the slots 21 and the member 17 may be moved to its folded position. Instead of the stays any other means may be employed for holding the member 17 in either its folded or unfolded position.

A platen carriage 25 isadapted to travel transversely of the machine, there being suitable tension means and escapeme-nt mechanism, not shown, for thisfpurpose. rthe carriage has a base 26 vertically disposed and has its horizontal edges grooved and opposed to grooves in plates or guides 2'? and 23. The plates 27 and 28 are secured to a plate 29 held to the rear Wall 14 of the main member' 11, and the gjrooves of said plates and of the carriage base 2G form raccways for anti-friction devices, as balls 30, to adapt the carriage to move easily during the letter-spacing movement thereof. The carriage 25 may have end walls 31 in which is rotatably mounted the usual roll or platen 32, there being; a paper apron, as 33, as Well as other features which usually form a part of the carriage or cooperating means therefor.

A foldable support 34 is pivotallv held on a rod 35 which extends transversely of the machine between the sides 13 of the main casing member 11. rilhis support 34 has sides 36 which may be connected by a trans versely extending bar 37, and each side is connected bv a link 36"l to the foldable case member 17 to foldably hold the outer' end of the support 34 in its normal operative position. At the forward ends of the sides 36 are arranged vertical guides 38 having grooves which are opposed to grooves in the ends of a type-bar segn'ient or support 3S). The grooves of the guides 38 and the grooves in the ends of the segment 39 form raceways for anti-friction devices, as rolls 40, to adapt the type-bar segment to be easily moved vertically as will be presently described. rl`he segment 39 is provided with slots 41 and in each slot is pivotally held a type-bar 42, a curved rod 43 being suitably held in the segment to serve as pivotal means for the type-bars. rlhe type-bars at their outer ends have a type-head or block 44 on which are the type 45 representii'lg` upper and lovver case characters, etc. The typeheads or blocks are adapted to rest upon a cushion, as 46, which is supported upon a curved plate 47, the latter beingl held to the outer ends of rods 48 which project forweasel.

Wardly and which are secured at theirv rear ends to the segment 39.

Each type-bar has a lue to which is pivoted at 49 one end vofl a L'link 50, said link being pivoted at 51 at its forward end to a bell-crank lever 52. rlhe bell-crank lever 52 has a downwardly extendingend 53, one edge, as 54, of which is 'curved to provide a cam surface which is adapted to be engaged by the cam edge 55 of a lip or extension 56 of akeyoperated lever 57. The .key-operated lever 57 is provided with a key 58 by which the said lever may be operated.' nly one key-lever, bell-crank lever and type-bar are shown, but the usual number of such, parts may be employed and such parts may be arranged in groups or banks in order that a substantially uniform touch may be obtained. As shown, it is intended that'there should he four groups or banks of key-operated levers 57, and a corresponding number of bell-crank levers 52, the latter being pivotally mounted on rods or supports 59 While the lrey-operated levers 57 are pivotally mounted upon supports GO, said supports 60 `being arranged horizontally when the man chine is in its normal operative position and verticallyA disposed under the rods or supports rllie rods 59 and G0 may be .supported in plates 61 spaced by means of studs 62 or* otherwise from the sides 36 of the foldable support 34, or said rods may be mounted in the sides direct. The parts thus far described may be substantially the same as that disclosed in my pending,- application Serial No. 56,242, hcreinbefore referred to, or may be of any other desired construction.

As a means for shifting the entire type bar basket inclu ding the segment, type-bars,

, and supporting frame for the type-bars, elel.

vating means may be en'iployed at either or at both sides of the machine. fr shift lever 33 may be located at each side of the man chine and connected or not as preferred. to move in unison, though as shown it is intended that the levers and parts operated thereby when located on both sides of the machine shift the typebaslret independently. vlach shift lever 63, Where more thanone is usedLis provided with a key (34. and is pivoted at 65 to one o*c the sides 36 of the foldable support 34. A supplemental lever 66 is located under the shift lever, and this lever 66 is provided with an enlarged part 67 having an outwardly projecting end or portion 68, the' upper edge of which is adapted to engage the under edge of the shift lever G3. rlhe lever 66 has a curved portion 69 serving as a rocker which is adapted to roll or move on rolls 70. rlhese rolls .70 are grooved to assist in holding the levers 66 in position, and said rolls 70 are guided upon a curved track 71 forming the upper edge of a plate, support or member 72. The head il? of the lever 66 is slOtted bodily and lengthwise movement.

as at 73 and passing through the slot is the body of a screw or bolt 74, serving to hold the lever 66 to the side 36 of the support 34, yet permitting said lever to have a limited At the outer end of the head 67 of the lever 66 is a curved end or lip 75 which is adapted to engage under a projectin lug 76 carried by the segment 39, the weig t of the type basket being jcounterbalanced by a spring 77,

.one end of which is fastened to the lu'g 76 and the other end to a pin .or bolt 78 projecting outward from the guide ends 38 of the support 34. A stop 79 is located on one side of the lug of each supplemental lever 66 and a second stop 80 on the other side. The stop 80 is normally engaged by the lug 76 and determines the lowercase position of the type, while the stop by the lug limits the upward shift movement of the segment and type basket, and therefore determines the position of the type with respect to the platen while-the uppercase type-are being used. f-

- It wil-l be evident, upon ya depression of either lever 63, where more than one is used, that during such depression the supplemental' lever 66 will be moved by reason of its engagement with the lower edge of the shift lever 63. The supplemental lever 66 when moved by the lever 63 will cause the end 75 to engage the projecting lug 76 and elevate -the segment and type basket, and on the release of the shift lever 63 the parts will returnto their normal poas shown in Fig. 2. lt will be further evident that at the initial point of depression of the -lever 63 the power arm of the supplemental lever 66 is much greater thanat the end of the depression and will make the elevation of the type basket easy to acn complish, and as the lever 63 continuesv to be depressed therewill be substantially a rocking action and a shifting of the point of contact between the supplemental lever 66 and the shift lever 63f'toward the fulcrum of/said lever 63. This increases the speed of the shift' movement of the typev basket as the depression of the shift lever increases, and at the same time they supplemental lever 66 shifts its position so-as4 to rock and move on the anti-frictionl devices 70.

Either or bot-h of the shift levers 63, where more than one is used, may be locked-in the depressed position when it is intended to,

use the upper case characters ,for any length of time. As one meansiyf-a lock lever. 8l is provided.I This lever .81 is substantially bell-crank' shapedand is pivoted at 82 to the shift lever 63. The lock lever81 lis nor-. mally forced in, one direction by means of a spring 83, one end of which is attached to said lever 81 and the other end toV the shift lever 63, the spring '83 serving to force the 79 when engaged lock lever 81 in one direction and to an engaging position, there being a spring 84 provided to assist in maintaining the lever 63 in its normal position particularly when the support 34 is moved to its folded compact position. @ne arm, as 85, of the bellcrank lever 81 is provided with a key 86 andv the other arm 87 of said lever 81 is notchedy so as to engage, when the lever 63 is depressed, with a substantially rectangular lug or boss 88, serving thereby to hold the lever 63 in its'Y depressed position. By releasing the lever 81, the lever 63 and parts operated thereby will lbe restored to their normal position byreason of the-w`eight of the parts shifted, though one or more springs may be employed -to assist in this operation if necessary or desired.

In Fig. 7 a construction is shown 'wherein the supporting rods 59 for the bell-crank levers 52 of the key action and the supporting rods 60 of the different groups of keyoperated levers 57 are supported in the sides" 36 of the foldable support 34 instead of in separate plates spaced from said sides 36.

'In this construction the shift llever A89 and the lock lever 90 are substantially the same case shift, there being two stops 96 and 97 similar to the stops 7 9 and 80 for positioning the type basket both in its normal and shifted positions, as already described. As with the otherl construction the shift means or part theref may be duplicated at the other side of the machine.

From the foregoing, it will be evident that simple and eiicient shift mechanism is provided; that said shift mechanism adapts the type basket to be moved with comparatively little force; that Y the vshift mechanism is so mounted as to ,be foldable into compact relation to ,the platen carriage; that said shift mechanism isladapted for usein various forms and constructions .of typewriting machinas; and that said shift'mechanism may.l be readily made angl(assembled.

Having thus" descrlbedfmy 1'nventrati,-y I

lmeans,a type segment, a shift lever, a supf pleinental lev'er having a rocking and bodily lengthwisefmovement and a shiftable point of engagement with the shift lever to varyk Athe speed of movement of said lever, means whereby the supplemental lever may be claimas new and .desire toseeureby-Letters caused to shift the type" basket, means for I determining the position of the type basket` in its normal and shifted positions, and locking means ttor holding the shift lever in f its shifted position.

3. ln a typewriting machine, the combination of ease-shift support-,akey-op rated shift lever, a supplemental lever having a rocking and bodily lengthwise movement and a shiftable engagement with the shift lever and adapted to shift said support, means for determining the position of the type segment in its normal and shifted positions, and locking means for holding the shift lever in its shifted position. i

,4. ln a typewriting machine, the combination of shift-supporting means, a shift lever, and a rocking and bodily slidable supplemental lever having a, shifting rocking engagement with the shift lever and a shifting i'nlerum and adapted to move said shift-supporting means.

5. ln a typewriting maehine, the Combination of a. foldable support, a platen carriage, a type segment mounted on the old-' a le support, and case-shift mechanism also mounted on the support.

6. ln a typewriting machine, the combination of a itolvdable support, a platen carriage, a type segment mounted on the support, and shift mechanism for the type segment also mounted` on the support and partakingg of its folding movement.

7. lin a. typewriting machine, the combination of a normally stationary support, a platen carriage' movable along said support, a foldable support pivotally held to the stationary support, a type segment mounted upon said foldable support, and shift meehanism operatively connected to the type segment to shittthe segment and mounted upon the foldable support to partake of its folding movement.

8. ln a typewriting machine, the eombination or" normally stationary support, a platen carriage movable along said support,

'told-.able support pivotally held to the Stationery support, a type segment, and case shift mechanism mounted entirely upon the foldable support to partake of its folding movement.

9. ln a typewriting machine, the combi nation of a foldable support, a type segment mounted on the support, a platen carriage, a shi'lit lever mounted on the support, a supplemental lever mounted on the support and having' a shifting rocking engagement With the shift lever, and operating connections between the supplemental lever and type-segment for moving the segment when the shift lever is actua-ted.'

ases

1G. Tn. a typewriting machine, a platen, type, a pivoted key-operated shift lever, and a supplemental rocking bodily movable lever having a shiftable rocking connection with the shift lever and adapted to impart a relative shift movement to the type and platen.

l1. ln a typewriting machine a platen, type, a pivoted key-operated shirt lever, a support, and a supplemental lever having a relative and bodily moving rocking connection with the shift lever and the support.

12. l'n a type-Writing,r machine, a case-shift support, a pivoted key-operated shift lever, a second support, a supplemental lever having a relative bodily moving and rocking IConnection with the shift lever and the seo- Vond support, said supplemental lever 'having a power arm that decreases during the depression or the key, the power arm of the shift lever increasing during the same depression.

13. ln a typewriting machine, a platen, type, a support, and two levers operated by a key and having a relative rocking and bodily moving connection with each other,

one of said levers having a similar connection with the support, said levers having .relatively changing power arms duringthe depression of said levers.

lll. ln a typewriting machine, the combination of a support, a carriage adapted to move along said support, a foldable support pivoted to the first-mentioned support and adapted to be moved from a normal open position to a compact position relatively to" the platen carriage, said oldable support having guides, a segment vertically movable in said guides, a spring normally Counterbalanoing the weight of the segment, rods extending forwardly from the segment, a plate held to said rods, a cushion supported by the plate, type-bars pivotally held to the segment and having their ends supported by the cushion in a normal position, means for operating the type-bars, a lug carried by thesegment, stops arranged on opposite sides of the lug to position the segment in its normal and shifted positions, a shift lever, a supplemental lever having a shiftable connection. with the shift lever and having one end thereof adapted to engage the lug of the segment to ada-pt the segment te `be elevated when the shift lever is depressed,

and means for locking the shift lever in its depressed. position.

15. ln a typewriting machine, the eombination of a support, a carriage adapted to move along said support, guides, a segment vertically movable in said guides, rods enn tending forwardly from the segment, a plate held to said rods, a cushion supported by the plate, type-bars pivotally held to the segment and having their ends supported by the cushion in a normal position, means for operating the type-bars, a lug carried by the nesaaai segment, stops arranged on opposite sides of. the lug to position the segment in its normal and shifted positions, a shift lever, and a supplimental lever having a shiftable connection with the shift lever and having one end thereof adapted to engage the lug of the segment tc adapt the segment to be elevated when the shift lever is depressed..

1G. ln a typewriting machine, the rombination of a support, a carriage adapted to move along said support, a `vertically mov able segment, type-bars pivotally held to the segment, means for operating the type-bars, a lug carried by the segment, stops arranged on opposite sides of the lug to position the segment in its normal and shifted positions, a shift lever, and a supplemental lever having aconnection with the shift lever and having one end thereof adapted to engage the lug of the segment to adapt the segment 'to be elevated when the shift lever is depressed.

l?. .in a typewriting machine, the com bination of a support, carriage adapted to "l move aleng said support, a foldable support pivoted tcthe first-mentioned support and adapted to be moved from a normal open position to a compact position relatively to the platen carriage, said foldable support having guides, a segment vertically movable in said guides, type-bars pivotally held to the segment, means for operating the typebars, and ease shift mechanism mounted on the foldable support.

18. ln a typewriting machine, the combination of a support, a platen rcarriage movable on said support, a type basket, a shift lever, a supplemental lever operated by the shift lever and adapted t0 move the type basket, said supplemental lever having a curved lower edge, a stationary curved track, and grooved rolls forming a support for the supplemental lever in its movement. 19.-ln a typewriting machine, the combination of a type segmentl support, a shift lever, and a supplemental lever 'adapted to lift said type segment support and having a' I shiftable point of connection with the shift lever and a shiftingfulcrum..

'and having ashift'able rocking connection with .theshift lever and the machine frame.

2l.' ln a typewriting machine, the conrlf bination of a type segment support, a pivoted shift lever, and a supplemental lever` adapted to lift vsaid type segment support and having a shiftable point of connection. with the shift lever and a'sliding and rock ing engagement with the machine frame.

22. ln a typewriting machine, the combination of a type segment, a. pivot/ed shift lever, a support, and a supplemental lever interposed between the shift lever and support and adapted to shift said type segment and having shiftable rocking, contact with the shift lever and a sliding and rocking contact with. the support.

23. n a typewritmfg machine, the combination of a4 type segment, a shift lever, a curved support below the shift lever, and a =supplemental lever epegativel connected to shift the type segment and aving a curved lower edge, said supplementah lever being interposed between the curved support and the shift lever and adapted to have a rocking movement and a bodily lengthwise sliding movement imparted thereto by the shift lever.

2li. ln a typewriting machine, the combination of a type segment, a shift lever', a curved support lbelow the shift lever, and

-a supplemental lever operatively'connected vto shift the type. se

ent and having a curved lower edge, said supplemental lever being adapted to rock upon and slide bodily lengthwise relativelyto said support and having a shifting rocking engagement with the shift lever.

This specification signed and witnessed this 20th day of November, A. D. 1915.

Witnesses:

ROBERT EASTON, W. Gr. RHODES.

esy 

